DURAWATT® ELECTRIC WATER HEATER

TYPICAL CURRENT MEASUREMENT

FIGURE 11

 

 

FIGURE 12

 

 

 

 

 

 

KW-VOLTAGE

 

3 Ø AMPS PER ELEMENT

1 Ø AMPS PER ELEMENT

 

 

 

 

 

 

AMPS PER LEG

AMPS TOTAL

AMPS PER LEG

AMPS TOTAL

 

 

 

 

 

 

 

 

*14 kW-600V

 

13 1/2

13 1/2

—

—

 

 

 

 

 

 

*7 kW-600V

 

7

7

—

—

 

 

 

 

 

 

18 kW-480V

 

22

22

—

—

 

 

 

 

 

 

9 kW-480V

 

11

11

—

—

 

 

 

 

 

 

4.5 kW-480V

 

5 1/2

5 1/2

—

—

 

 

 

 

 

 

18 kW-240V

 

44

44

25

75

 

 

 

 

 

 

9 kW-240V

 

22

22

13

38

 

 

 

 

 

 

4.5 kW-240V

 

11

11

6

18

 

 

 

 

 

 

18 kW-208V

 

50

50

29

87

 

 

 

 

 

 

9 kW-208V

 

25

25

15

44

 

 

 

 

 

 

4.5 kW-208V

 

12 1/2

12 1/2

7

22

 

 

 

 

 

 

 

 

 

TABLE 2

 

 

 

 

 

 

 

 

NOTE: Elements are usually wired to contactors in groups, in order to maintain an amperage draw of close to, but not more than, 50 amps per contactor.

*Applications for 600V use a re-rated 480V element. Therefore, the 40W/in.2 is rated for 14 kW instead of 9 kW.

PV500-6 09/07

12